StarTech.com ICUSB2324, USB, RS-232, 0.921 Gbit/s, 256 B, 1.5 W, 0 - 55 °C StarTech.com ICUSB2324. Host interface: USB, Serial interface type: RS-232. Data transfer rate (max): 0.921 Gbit/s, FIFO (First In, First Out): 256 B. Power consumption (typical): 1.5 W. Width: 5.91" (150 mm), Depth: 2.62" (66.5 mm), Height: 1.02" (26 mm). Cables included: USB